package net.minecraft.entity.item;

import java.util.List;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.init.Blocks;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.ContainerHopper;
import net.minecraft.item.Item;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.tileentity.IHopper;
import net.minecraft.tileentity.TileEntityHopper;
import net.minecraft.util.BlockPos;
import net.minecraft.util.DamageSource;
import net.minecraft.util.EntitySelectors;
import net.minecraft.world.World;

public class EntityMinecartHopper extends EntityMinecartContainer implements IHopper {
	/** Whether this hopper minecart is being blocked by an activator rail. */
	private boolean isBlocked = true;
	private int transferTicker = -1;
	private BlockPos field_174900_c = BlockPos.ORIGIN;

	public EntityMinecartHopper(World worldIn) {
		super(worldIn);
	}

	public EntityMinecartHopper(World worldIn, double p_i1721_2_, double p_i1721_4_, double p_i1721_6_) {
		super(worldIn, p_i1721_2_, p_i1721_4_, p_i1721_6_);
	}

	public EntityMinecart.EnumMinecartType getMinecartType() {
		return EntityMinecart.EnumMinecartType.HOPPER;
	}

	public IBlockState getDefaultDisplayTile() {
		return Blocks.hopper.getDefaultState();
	}

	public int getDefaultDisplayTileOffset() {
		return 1;
	}

	/**
	 * Returns the number of slots in the inventory.
	 */
	public int getSizeInventory() {
		return 5;
	}

	/**
	 * First layer of player interaction
	 */
	public boolean interactFirst(EntityPlayer playerIn) {
		if (!this.worldObj.isRemote) {
			playerIn.displayGUIChest(this);
		}

		return true;
	}

	/**
	 * Called every tick the minecart is on an activator rail. Args: x, y, z, is the
	 * rail receiving power
	 */
	public void onActivatorRailPass(int x, int y, int z, boolean receivingPower) {
		boolean flag = !receivingPower;

		if (flag != this.getBlocked()) {
			this.setBlocked(flag);
		}
	}

	/**
	 * Get whether this hopper minecart is being blocked by an activator rail.
	 */
	public boolean getBlocked() {
		return this.isBlocked;
	}

	/**
	 * Set whether this hopper minecart is being blocked by an activator rail.
	 */
	public void setBlocked(boolean p_96110_1_) {
		this.isBlocked = p_96110_1_;
	}

	/**
	 * Returns the worldObj for this tileEntity.
	 */
	public World getWorld() {
		return this.worldObj;
	}

	/**
	 * Gets the world X position for this hopper entity.
	 */
	public double getXPos() {
		return this.posX;
	}

	/**
	 * Gets the world Y position for this hopper entity.
	 */
	public double getYPos() {
		return this.posY + 0.5D;
	}

	/**
	 * Gets the world Z position for this hopper entity.
	 */
	public double getZPos() {
		return this.posZ;
	}

	/**
	 * Called to update the entity's position/logic.
	 */
	public void onUpdate() {
		super.onUpdate();

		if (!this.worldObj.isRemote && this.isEntityAlive() && this.getBlocked()) {
			BlockPos blockpos = new BlockPos(this);

			if (blockpos.equals(this.field_174900_c)) {
				--this.transferTicker;
			} else {
				this.setTransferTicker(0);
			}

			if (!this.canTransfer()) {
				this.setTransferTicker(0);

				if (this.func_96112_aD()) {
					this.setTransferTicker(4);
					this.markDirty();
				}
			}
		}
	}

	public boolean func_96112_aD() {
		if (TileEntityHopper.captureDroppedItems(this)) {
			return true;
		} else {
			List<EntityItem> list = this.worldObj.<EntityItem>getEntitiesWithinAABB(EntityItem.class,
					this.getEntityBoundingBox().expand(0.25D, 0.0D, 0.25D), EntitySelectors.selectAnything);

			if (list.size() > 0) {
				TileEntityHopper.putDropInInventoryAllSlots(this, (EntityItem) list.get(0));
			}

			return false;
		}
	}

	public void killMinecart(DamageSource p_94095_1_) {
		super.killMinecart(p_94095_1_);

		if (this.worldObj.getGameRules().getBoolean("doEntityDrops")) {
			this.dropItemWithOffset(Item.getItemFromBlock(Blocks.hopper), 1, 0.0F);
		}
	}

	/**
	 * (abstract) Protected helper method to write subclass entity data to NBT.
	 */
	protected void writeEntityToNBT(NBTTagCompound tagCompound) {
		super.writeEntityToNBT(tagCompound);
		tagCompound.setInteger("TransferCooldown", this.transferTicker);
	}

	/**
	 * (abstract) Protected helper method to read subclass entity data from NBT.
	 */
	protected void readEntityFromNBT(NBTTagCompound tagCompund) {
		super.readEntityFromNBT(tagCompund);
		this.transferTicker = tagCompund.getInteger("TransferCooldown");
	}

	/**
	 * Sets the transfer ticker, used to determine the delay between transfers.
	 */
	public void setTransferTicker(int p_98042_1_) {
		this.transferTicker = p_98042_1_;
	}

	/**
	 * Returns whether the hopper cart can currently transfer an item.
	 */
	public boolean canTransfer() {
		return this.transferTicker > 0;
	}

	public String getGuiID() {
		return "minecraft:hopper";
	}

	public Container createContainer(InventoryPlayer playerInventory, EntityPlayer playerIn) {
		return new ContainerHopper(playerInventory, this, playerIn);
	}
}
